Reviews by patients who have Tooth Pain and take Zinc either as part of daily diet or as method of treatment. Positive and negative experiences from patients with Tooth Pain that take Zinc
1 Red or black colored stool may be a sign of bleeding in the GI tract (from the esophagus, stomach, small intestine or colon) and should not be ignored.  When stool color changes, what tests need to be done depend upon depends upon what cause is suspected for the stool color change.
False Melena. Black stool is generally âtarryâ in nature, producing a strong, foul odor not usually found in typical waste. When it is benign, black waste can be caused by the consumption of certain foods, supplements, minerals, or medications. This dietary connection is known as âfalse Melenaâ as medical Melena refers to blood from internal bleeding discoloring the stool.